This thread is in HP1 as well, HP1 strats can go there.

For clarity, abusable physics include:

• Clipping through ledges due to increased dropspeed from an angled jump (e.g. in HP1 in the lava-cave before the Puffskeins, you can jump from a high ledge down to the first ledge where the lava is and clip through)
• Using models at the edge of ledges to proxy with (see Stand Where I Point skip)
• Using acute angles between models and/or walls to move into a wall (see Forest skip in HP1)
• Extra speed from stair banisters (e.g. in HP1, at the beginning of the game, where you jump across banisters for a fast jump) [although there aren't as many slippery banisters in HP2]

So far, useful strats include:

• Not RTA-friendly:
• RTA-friendly:
  • although this is really finicky to get quickly, and getting it as quick as in the video only saves about a second.
  • In the Lower Hogwarts area on the way to Deathday, you can jump from the high banister you start from down to the next banister behind Nick, and clip and fall through it, triggering the cutscene slightly faster than jumping onto the banister and jumping off.

Some things that aren't useful (yet) are:

• An acute angle between the hedgewall and the Ford Anglia right at the start of Burrow that vertically zips you onto the hedgewall. With precise jumps and movement, you can be on the hedgewall above the locked gate. If there's a way to get behind the gate, a TAS could skip the Ghoul part entirely (getting to the hedge could take about 15-20 seconds, excluding having to trigger the cutscene where Ron climbs and jumps the crates, because that trigger is like a big wall that you can't avoid)
• An acute angle in the Teachers segment, in the McGonogallXSnape area, opposite the hedge in McGonogall's path. Doesn't go anywhere though, it's one where you just jump behind the wall and zip straight out to where you started.
• An acute angle in the Girl's Bathroom, actually, multiple acute angles, where the arches are near the door. There is one where going into one wall can lead to an ascension with three consecutive jumps that lead on to each other (one jump 'lands' at its peak, and a change in direction can lead to another jump, and then a final one, and then you just drop back to where you started). Everything else seems to work just like the Teachers one above. -There are a few acute angles near the Quidditch Training entrance, two of which are at the door entrance. I thought there might be a way to get behind the door and trigger the training before Herbology. Not sure if that would be very helpful if you don't then get given Incendio because you triggered a flag ahead of learning the spell, so the game thinks you've learnt it. There is also an OoB that can occur from an acute angle nearby, with some extra movement in order to get it. -There's an acute angle on the right side of both trees with webs on them. You can slowly ascend up the tree, but I don't think you can do much else after that. -There's also an acute angle on the right side of the web in the Chamber Trials. That also doesn't do much. -There's a proxy off of a knight in the Dark Hall Trial, and it almost reaches the nearby ledge where there's a Verdimillious wall. -There are some ledges that can be grabbed nearly halfway across a wall, so when getting up, Harry is less than halfway inside the wall, but then gets bumped out. -There is an acute angle near the red chair near a bookcase in the Gryffindor Common Room. You can OoB somehow in the arm of the chair once you're in it, but the OoB falls straight into a reloaded room, with the textures reloaded as if you didn't do anything. Maybe the trigger for the cutscene where Harry and Ron find out that Hermione was attacked and that Ginny has gone to the Chamber of Secrets might be around the top of the room. Although, my theory about triggers is that they have flags, and so some things are only loaded when flags have been triggered. This might explain why Nick only appears outside of the Common Room after the first House Point totalling, among other things. -There's probably some I forgot about.

Post any you find here! TriHard

Also, you can get zipped out of WingLev objects if you drop them on top of you.